class DevConfig:
    SQLALCHEMY_DATABASE_URI = 'mysql+pymysql://root:123456@localhost:3306/my_flask'
    SQLALCHEMY_TRACK_MODIFICATIONS = False

class PorConfig:
    SQLALCHEMY_DATABASE_URI = 'mysql+pymysql://root:123456@localhost:3306/my_flask'
    SQLALCHEMY_TRACK_MODIFICATIONS = False

